[PATCH 1/2] dt-bindings: arm: bcm: raspberrypi,bcm2835-firmware: Add missing properties

[Stefan Wahren]

[add Dave since he's working on DMA for Raspberry Pi 4 and maybe have a
opinion about this]

[drop Emma Anholt old address since she is not involved anymore]

Am 26.03.24 um 08:06 schrieb Krzysztof Kozlowski:
> On 26/03/2024 01:49, Laurent Pinchart wrote:
>> The raspberrypi,bcm2835-firmware devices requires a dma-ranges property,
>> and, as a result, also needs to specify #address-cells and #size-cells.
>> Those properties have been added to thebcm2835-rpi.dtsi in commits
>> be08d278eb09 ("ARM: dts: bcm283x: Add cells encoding format to firmware
>> bus") and 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's firmware bus DMA
>> limitations"), but the DT bindings haven't been updated, resulting in
>> validation errors:
>>
>> arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dtb: firmware: '#address-cells', '#size-cells', 'dma-ranges', 'gpio' do not match any of the regexes: 'pinctrl-[0-9]+'
>>          from schema $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
>>
>> Fix this by adding the properties to the bindings.
>>
>> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Children do not perform any IO on their own, because everything is
> handled by parent. It is really odd to see dma-ranges without ranges.
> Referenced commits might be also wrong.
>
> Best regards,
> Krzysztof
>
>
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